L-Cysteine Hydrochloride Monohydrate

L-Cysteine Hydrochloride Monohydrate is widely used in fields of medicine, food processing, biological study, materials of chemical industry and so on.It’s used as raw materials for manufacturing N-Acetyl-L-Cysteine , S-Carboxymethyl-L-Cysteine and L-Cysteine base etc.Used in the cure of liver disease, antioxidant and antidoteIt is a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting ageing.Also used in cosmetic. SPECIFICATION Item Specifications USP AJI Appearance White crystals or crystalline powder; strongly acid taste. Identification Infrared Absorption — Specific optical rotation +5.6 °- +8.9 ° +5.5 °- +7.0 ° State of solution (Transmittance) — >= 98.0% clear and colorless Chloride (Cl) — 19.89-20.29% Ammonium(NH4) — =< 0. 002% Sulfate =< 0. 03 % =< 0. 020% Iron =< 0. 003 % 10ppm Heavy Metals (as Pb), =< 0.00 15% =< 10ppm Arsenic (as As), — =< 1ppm Other amino acids — Not detected Organic volatile impurities Meets the requirement — Loss on drying, 8-12 % 8.5-12 % Residue on ignition, c =< 0.1 0 % Assay 98.5-101.5 % 9 9.0-10 0.5 % pH value — 1.5-2.0 Organic volatile impurities Meets the requirement — Chromatographic purity 0.5% max Individual impurity, 2% max total —